I am in need of a detail for a Triple Basin Stormwater Interceptor. It would basically be like a precast concrete manhole with 3 chambers. If anyone has one that is somewhat generic, I would appreciate it. Thanks.
Are you referring to a something to remove sand, grit, grease and free oil? These are not usually precast concrete because they are not very large structures.
It is acutally a local requirement. The Town Engineer wants a triple basin and said it would be cheaper to fabricate a precast structure than to purchase a proprietary separator.
First of all, if he knows what he wants, he should be able to draw it for you. That said, I'd look at three manholes sideby side connected with pipes at whatever elevations you want. Simple to order, construct and clean.